diff --git a/nakama/Dockerfile b/nakama/Dockerfile
index 96296bc..9927656 100644
--- a/nakama/Dockerfile
+++ b/nakama/Dockerfile
@@ -12,15 +12,13 @@ FROM heroiclabs/nakama-pluginbuilder:3.35.1 AS builder
 
 WORKDIR /backend
 
-# Copy Go module files
+# Copy Go module files and source
 COPY go-modules/go.mod go-modules/go.sum* ./
-
-# Download dependencies
-RUN go mod download 2>/dev/null || go mod tidy
-
-# Copy source
 COPY go-modules/*.go ./
 
+# Generate go.sum and download dependencies
+RUN go mod tidy
+
 # Build the plugin as a shared library
 RUN go build -buildmode=plugin -trimpath -o backend.so .